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