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