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