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