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