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