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