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