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