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