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