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