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