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