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