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