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