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