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