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