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