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