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