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