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