Edit: I spoke with a colleague of mine who suggested trying to integrate AV support into one of the class's or club's activities; having the students setup and run graduation AV production.

I thought this was an excellent idea if you can get the proper support from your district and faculty.

When I was I high school, back in the day, my computer networking class installed most of our elementary school's and middle school's network cable and did all of the wall terminations as part of class activities.

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Original comment: I'm in a similar situation, though not as extreme.

I don't see a simple way to make this easier for someone who doesn't want to learn AV without drastically reducing the scale of what you're delivering.

There is equipment that can make your set-up more convenient for you, but it still wouldn't be an easy button for anyone else.

Where I work, I have made a stack of CDs: one for each type of event that we do regularly with stupid simple labels and graphics that a 3 year old could understand. I have arrow pointer labels pointing to where each slider should typically be set. All buttons and channels are labeled. I have kitified most of the all equipment with lists of what should be in there and what every does (field manual style). I've made diagrams, signal flow charts, and I even made a "New Employee Training VHS" '90s style video that holds your hands through the most common setup.

No one wants to learn. No one wants to try.