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