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