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