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