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