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