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