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