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