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