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