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