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