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