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