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