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