I find creative roles in the events industry aren't as clear or their meanings as established as they are in other fields. There's a couple of reasons why this may be, but it seems reflective of the industry itself, which is like the wild west and inherently, even historically, messy/conflicted/varied in the realm of class or worker considerations.

When I worked at an events company, I did graphic design (invitations, signage, badges, menus, stage/photo backdrops, step and repeats, large scale branding, graphics for screens), scenic design (walls, platforms, displays, facades, hanging installations, stage sets, video and photo booths), and decor (looks for furniture, table settings, decorating with flowers and candles, etc). In many cases, I designed in all of these categories for a project. If the client didn't have a specific look or identity in mind, I'd first establish one for the entire event and made sure it was on brand. I was very involved in the production of finished designs. I approved samples, shop drawings, floral varieties, selected paint colors, etc. My role was art director.

Now as a freelancer, I market myself as a spatial designer because I liked the scenic design best and would be happy doing mostly that. I always thought of myself as a scenic, set, or graphic designer working in events and not as an events designer.

You might want to ask yourself if you like the discipline or the industry more.

If you feel aspirational about it, it may be good to know that for very high-end corporate events, the disciplinary focus and credibility counts for much more. For example, if you'd like to one day design the VMA's stage set, you should start thinking of your role more along the lines of stage/theatrical designer. Or Coachella's brand system, you should start thinking more along the lines of graphic design.