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