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