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