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