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