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