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