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