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