One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,7,6,10,4,8)(3,11,13,9,14,15,12,16)(17,18)(19,28)(20,25)(21,30)(22,29)(23,26)(24,27)(31,32)(2,7)(4,5)(8,10)(9,11)(12,13)(15,16)(17,19,24,31)(18,21,27,20)(22,25,23,30)(26,32,29,28)(2,8)(4,5)(7,10)(9,15)(11,16)(12,13)(17,20,24,21)(18,25,27,30)(19,29,31,26)(22,32,23,28)(1,3,6,14)(2,9,10,16)(4,13,5,12)(7,11,8,15)(17,21,24,20)(18,19,27,31)(22,32,23,28)(25,29,30,26)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.