One vertex per element, one color per generator, with an edge from x to x·s.
(1,2) involution — undirected(5,11)(6,13)(8,16)(9,14)(12,15)(17,18)(19,20)(21,31)(22,35)(23,30)(24,29)(25,28)(26,33)(27,36)(32,40)(34,43)(37,44)(38,41)(39,42)(45,47)(46,49)(48,50) involution — undirected(3,4,7,10)(5,8,12,17)(6,14,13,9)(11,18,15,16)(19,21)(20,26)(22,32)(23,38)(24,33)(25,34)(27,40)(28,41)(29,43)(30,31)(35,49)(36,47)(37,48)(39,46)(42,50)(44,45)(3,5)(4,8)(6,15)(7,12)(9,18)(10,17)(11,13)(14,16)(19,22,25,37)(20,27,28,42)(21,32,34,48)(23,36,24,39)(26,40,41,50)(29,35,30,44)(31,45,43,49)(33,46,38,47)(20,28)(26,41)(27,42)(29,30)(31,43)(35,44)(40,50)(45,49) 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.