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