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