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