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