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