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