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