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