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