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