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