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