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