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