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