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