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