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