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