One vertex per element, one color per generator, with an edge from x to x·s.
(2,3)(5,6,9,15,11,14,10,16)(7,12,17,13,8,19,18,20)(21,22,24,29,25,28,30,27)(23,26,32,33,31,34,36,35)(1,2,4,3)(5,7,9,17,11,8,10,18)(6,12,15,13,14,19,16,20)(21,23,30,36,25,31,24,32)(22,26,27,35,28,34,29,33)(5,8,11,7)(6,13,14,20)(9,17,10,18)(12,16,19,15)(22,27)(23,31)(24,30)(26,33)(28,29)(34,35)(1,3,4,2)(6,14)(12,19)(13,20)(15,16)(22,28)(26,34)(27,29)(33,35)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.