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