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