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