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