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