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