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