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