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