SRAM XG-1180 Cassette cleaning/maintenance?

Been riding down here in FL for a few months so my bike is pretty gritty. Tearing apart my Specialized Stumpjumper FSR Elite 650b for some cleaning. First time taking the SRAM XG-1180 cassette off. Got it off w/the proper tools no sweat. The cassette came off all as one piece. Do I need to break it down further (does it come further apart?!) to clean it, or do i clean/degrease/reinstall it all as one piece? Anything else I should be aware of when cleaning and reinstalling this cassette? Thanks!