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