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