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