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