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