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