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