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