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