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