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