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