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