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