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