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