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