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