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