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