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