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