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