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