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