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