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