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