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