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