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)(11,15)(12,13)(14,16)(17,18)(19,21)(20,29)(22,25)(23,26)(24,31)(27,28)(30,32)(2,5)(6,8)(10,13)(14,15)(17,19,28,24,22,29,23,30)(18,20,27,32,25,21,26,31)(1,3)(2,6)(4,7)(5,8)(9,11,12,16)(10,14,13,15)(17,20,22,21)(18,19,25,29)(23,32,28,31)(24,27,30,26)(3,7)(6,8)(11,16)(14,15)(17,21)(18,24)(19,26)(20,22)(23,32)(25,30)(27,29)(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.