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