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