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