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