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