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)(22,26)(23,29)(25,32)(27,34)(30,35)(31,36)(5,7,10,8)(6,11,9,12)(13,14)(15,18)(16,17)(19,20)(21,22)(23,30)(24,26)(25,28)(27,31)(29,34)(32,33)(35,36)(5,8,10,7)(6,11,9,12)(14,17)(18,20)(21,23,25,29,24,31,32,36)(22,27,28,35,26,30,33,34)(2,4)(5,9,10,6)(7,12,8,11)(13,15,16,19)(14,18,17,20)(22,26)(23,31)(28,33)(29,36)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.