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