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