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