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