Here’s the pretty Quick Reference Sheet. For the formations themselves you might want to look at the pictures on the actual documents, although the best you can do is to work with a sheet next to you.
Mine is a nice reminder of:
a. Whispers. I use the numpad for whispers, and each number is a specific ship.
b. Fleet orders. The common ones are rather easy to remember, but I’d hate to be the guy who doesn’t remember what a Lambda 4 is when it actually gets ordered.
c. Formations, as those are relatively new and I’m not entirely confident with them just yet.