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