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)(11,14,16,15)(17,18,21,20)(19,23,24,22)(27,32)(28,30)(2,7)(5,8)(10,12)(14,15)(18,20)(19,24)(25,26,29,31)(27,30,32,28)(1,3,6,4)(2,8,7,5)(9,10,13,12)(11,14,16,15)(17,19,21,24)(18,22,20,23)(25,27)(26,30)(28,31)(29,32)(1,4,6,3)(2,5,7,8)(9,11,13,16)(10,14,12,15)(25,28,29,30)(26,27,31,32)(1,5)(2,3)(4,7)(6,8)(9,12,13,10)(11,15,16,14)(17,20,21,18)(19,23,24,22)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.