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