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