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