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