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