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