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