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