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