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