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