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)(11,13)(12,15)(14,16)(17,18)(19,23)(20,24)(21,22)(25,26,29,31)(27,28,32,30)(9,11)(10,12)(13,16)(14,15)(17,19,22,20)(18,23,21,24)(25,27)(26,30)(28,31)(29,32)(9,12,14,13)(10,15,16,11)(17,18,22,21)(19,23,20,24)(25,27,29,32)(26,28,31,30)(1,2)(3,5)(4,6)(7,8)(9,13,14,12)(10,11,16,15)(17,20,22,19)(18,23,21,24)(25,28,29,30)(26,27,31,32)(1,3,4,7)(2,5,6,8)(9,11)(10,13)(12,16)(14,15)(17,21,22,18)(19,23,20,24)(25,27)(26,28)(29,32)(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.