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