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