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