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