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