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