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