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