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