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