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