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