One vertex per element, one color per generator, with an edge from x to x·s.
(5,6)(7,11)(8,12)(9,10)(13,19)(14,17)(15,20)(16,18)(21,22,26,31,39,49,52,42,25,30,38,48,27,32,41,45)(23,33,34,47,37,44,40,29,24,28,36,43,35,50,51,46)(1,2)(3,4)(6,10)(11,17)(12,18)(19,20)(21,23)(22,28)(24,25)(26,34)(27,35)(29,45)(30,33)(31,43)(32,44)(36,38)(37,39)(40,52)(41,51)(42,46)(47,48)(49,50) involution — undirected(2,4)(5,7,9,14)(6,11,10,17)(8,15,16,13)(12,20,18,19)(21,24,25,23)(22,29,30,46)(26,40,38,51)(27,35,39,37)(28,42,33,45)(31,44,48,50)(32,43,49,47)(34,41,36,52)(5,8,9,16)(6,12,10,18)(7,13,14,15)(11,19,17,20)(23,24)(28,33)(29,46)(34,36)(35,37)(40,51)(43,47)(44,50)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.