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