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