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