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