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