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