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)(19,20,24,27)(21,25,30,39)(22,32,34,42)(23,35,37,28)(26,36,41,33)(29,43,44,50)(31,47,46,40)(38,48,49,45)(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)(26,38)(27,39)(28,40)(32,43)(33,45)(34,44)(35,47)(36,48)(37,46)(41,49)(42,50)(19,22,24,34)(20,26,27,41)(21,29,30,44)(23,36,37,33)(25,38,39,49)(28,42,35,32)(31,48,46,45)(40,50,47,43)(3,6,7,15)(4,9,10,18)(5,12,13,14)(8,16,11,17)(20,27)(21,30)(26,41)(28,35)(29,44)(31,46)(32,42)(45,48)(4,10)(8,11)(9,18)(16,17)(21,30)(25,39)(29,44)(31,46)(38,49)(40,47)(43,50)(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.