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