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