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