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