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