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