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