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