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