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