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