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