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