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