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