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