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