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