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