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