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)(19,22,25,29)(20,27,28,23)(26,32,31,30)(33,34)(35,39)(36,40)(37,38)(41,47)(42,46)(43,48)(44,45)(9,11,13,16)(10,14,12,15)(19,25)(22,29)(26,31)(30,32)(34,38)(39,46)(40,44)(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)(25,29)(26,30)(27,28)(31,32)(33,35,37,42)(34,39,38,46)(36,43,45,41)(40,48,44,47)(1,3)(2,6)(4,8)(5,7)(9,12,13,10)(11,15,16,14)(17,19,21,25)(18,22,24,29)(20,26,28,31)(23,30,27,32)(33,34)(35,39)(36,44)(37,38)(40,45)(41,48)(42,46)(43,47)(1,4,5,2)(3,8,7,6)(17,20,21,28)(18,23,24,27)(19,26,25,31)(22,30,29,32)(33,36)(34,40)(35,41)(37,45)(38,44)(39,47)(42,43)(46,48)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.