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