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