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