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