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