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