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