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