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