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