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