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