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