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