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