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