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