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