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