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)(21,22,27,29)(23,30,33,34)(24,26,35,25)(28,36,31,32)(5,7,9,14)(6,10,13,11)(8,17,18,15)(12,20,16,19)(21,23)(22,28)(24,34)(25,32)(26,36)(27,33)(29,31)(30,35)(1,2,3,4)(5,7)(6,11)(8,15)(9,14)(10,13)(12,20)(16,19)(17,18)(22,29)(24,35)(28,31)(30,34)(7,14)(10,11)(15,17)(19,20)(21,24,27,35)(22,25,29,26)(23,31,33,28)(30,36,34,32)(5,8,9,18)(6,12,13,16)(7,15,14,17)(10,19,11,20)(21,25,27,26)(22,24,29,35)(23,32,33,36)(28,34,31,30)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.