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