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