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