One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,4)(3,6,7,8)(11,15)(13,16)(17,18,24,19)(20,25,21,28)(22,27,23,30)(26,31,29,32)(2,4)(6,8)(9,10,12,14)(11,13,15,16)(17,19,24,18)(20,26,21,29)(22,27,23,30)(25,31,28,32)(1,3,5,7)(2,6,4,8)(9,11,12,15)(10,13,14,16)(17,20)(18,25)(19,28)(21,24)(22,32)(23,31)(26,27)(29,30)(1,4,5,2)(3,6,7,8)(10,14)(13,16)(17,21)(18,26)(19,29)(20,24)(22,32)(23,31)(25,27)(28,30)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.