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