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