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