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