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