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