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