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