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