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)(11,16)(12,15)(13,14)(17,18,21,19)(20,22,24,23)(25,26,28,30)(27,31,32,29)(2,4)(3,8)(9,11,14,15)(10,12,13,16)(18,19)(22,23)(25,26,28,30)(27,29,32,31)(2,4)(6,7)(10,13)(11,15)(17,18,21,19)(20,23,24,22)(25,27)(26,29)(28,32)(30,31)(1,3)(2,6)(4,7)(5,8)(9,12,14,16)(10,15,13,11)(17,19,21,18)(20,22,24,23)(25,27)(26,29)(28,32)(30,31)(1,4,5,2)(3,6,8,7)(9,13,14,10)(11,12,15,16)(17,20,21,24)(18,22,19,23)(25,26)(27,29)(28,30)(31,32)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.