An "organized" person keeps things in order. They know where to find information, don't forget things, and don't miss deadlines.
"Super-organized" means "very, very organized".
Some other adjectives that fit well with "super-" are:
Use a hyphen ("highly-motivated") when you use this phrase before a noun in written English:
a super-organized person
Don't use a hyphen when the phrase stands on its own:
He's super organized.