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