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