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