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