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