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