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)(15,18)(16,17)(19,20)(22,26)(23,29)(28,33)(30,35)(5,6,9,7)(8,10,12,11)(13,14,17,16)(15,19,20,18)(23,29)(27,32)(30,35)(34,36)(13,15)(14,18)(16,19)(17,20)(21,22,25,26)(23,27,29,32)(24,28,31,33)(30,34,35,36)(1,2)(3,4)(5,7,9,6)(8,10,12,11)(13,16,17,14)(15,19,20,18)(21,23)(22,27)(24,30)(25,29)(26,32)(28,34)(31,35)(33,36)(5,8)(6,10)(7,11)(9,12)(13,15)(14,19)(16,18)(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.