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