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