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