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