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