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