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