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