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