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