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