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