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