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