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