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