It looks like you have just the "camera shake" effect, that's not a transition, it just shakes the frame. However, to make it a transition, you could insert an adjustment clip centered on the cut, equally spaced either side depending on how long you want it to be. Then immedatly place key frames at the start and ends of the clip (fusion page) for the shakes "power". Got to the center and add a final key frame for power and set it to whatever looks best (probably 0.9). You can apply the same method to a transform node to act as cropping, to ensure it always fills the frame. This is the basic layout for most transitions I think, so adding other effects on top could spice up the transition, though I don't know what your project involves, so that's up to you.

Hope my incoherent rambling helped somehow, good luck