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