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