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