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