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