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