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