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