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