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