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