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