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