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