One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,6,5)(3,4,8,7)(9,10)(11,14)(12,21)(13,17)(15,18)(16,20)(19,24)(22,23)(27,36)(29,40)(31,32)(34,37)(2,5)(3,8)(9,11)(10,14)(12,13)(15,19)(16,22)(17,21)(18,24)(20,23)(25,26,30,35)(27,32,36,31)(28,33,39,38)(29,34,40,37)(1,3,6,8)(2,7,5,4)(11,19)(12,20)(14,24)(16,21)(25,27,30,36)(26,31,35,32)(28,37,39,34)(29,33,40,38)(1,4)(2,3)(5,8)(6,7)(9,12)(10,16)(11,13)(14,22)(15,20)(17,24)(18,21)(19,23)(25,27)(26,32)(28,34)(29,38)(30,36)(31,35)(33,40)(37,39) involution — undirected(1,5,6,2)(3,4,8,7)(9,13)(10,17)(11,20)(12,19)(14,16)(15,23)(18,22)(21,24)(25,28)(26,33)(27,37)(29,32)(30,39)(31,40)(34,36)(35,38)(1,4)(2,3)(5,8)(6,7)(9,14)(10,11)(12,22)(13,16)(15,24)(17,20)(18,19)(21,23)(25,29)(26,34)(27,38)(28,32)(30,40)(31,39)(33,36)(35,37) 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.