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