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