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