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