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