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