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