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