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