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