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