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