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