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