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