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)(17,18,24,27)(19,28,25,22)(20,21,30,29)(23,32,31,26)(2,5)(6,7)(9,11)(10,13)(12,15)(14,16)(17,19,22,18,23,20,21,26,24,25,28,27,31,30,29,32)(11,15)(13,16)(17,18,21,25,31,32,22,20,24,27,29,19,23,26,28,30)(1,3,4,8)(2,6,5,7)(17,20,22,26,23,25,21,27,24,30,28,32,31,19,29,18)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.