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