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