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