The thing is, there are a LOT of keyboard shortcuts!
I have Vegas Pro -- not Movie Studio -- but I'm guessing if you click on "Help" at the top of your VMS window, you'll see "Keyboard Shortcuts" as the third item down (or at least it is in Pro). Once the help window comes up you should be able to print it, or select pieces of it and then print just the "Selection" area.
I don't see a full manual for VMS -- just a QuickStart Guide -- but if you download the manual for Vegas Pro, Appendix D (starting on page 511) lists the shortcut keys (10 pages of them). Some of these probably apply only to Pro and not VMS, but I bet the majority of them do apply to VMS.
I haven't seen Steve's list, but if it's a summary of the most common keystrokes it will probably be more useful to you. There might be other "home made" lists of Vegas keystrokes out there on the web. Just be careful to use "keyboard" or "shortcuts" in your search terms. If you search for "sony vegas keys" you are likely to be led to a bunch of illicit sites that offer keygen programs or cracked vegas software, etc. -- i.e. "keys" meaning hacked "serial numbers", etc.
I don't think there is one specifically for VMS, but the VMS shortcuts will be virtually identical to those for Vegas Pro for which there is a PDF here