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