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