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