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