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