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