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