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