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