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