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