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