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