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