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