Some months ago I found a cheat sheet about navigation keystrokes. They are very helpful for improving your terminal performance. Every shortcut is usually documented at the right to the menu items. However this time you don't have that comfort. The handy cheat sheet has some flaws: Some Unix shortcuts do not work on macOS e.g. Alt+B creates the character "∫" instead of moving the beginning of the word.

I also found more shortcuts by trial and error and upgraded the graphic accordingly. You can get it here as png, pdf or omni graffle file.

Cheatsheet for iTerm
Diagram showing AI terms

If you sometimes use the macOS Terminal application I advise you to upgrade to iTerm 2.