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