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