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