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