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