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