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)(17,18,22,24)(19,23,27,32)(20,25,29,28)(21,30,31,26)(33,34,38,40)(35,41,43,37)(36,39,46,44)(42,47,48,45)(2,6)(7,9)(8,12)(14,15)(17,19,22,27)(18,23,24,32)(20,26,29,30)(21,28,31,25)(33,35)(34,37)(36,42)(38,43)(39,45)(40,41)(44,47)(46,48)(2,6)(3,10)(4,13)(14,15)(18,24)(19,27)(20,29)(21,31)(33,34,38,40)(35,37,43,41)(36,44,46,39)(42,47,48,45)(1,3,5,10)(2,7,6,9)(4,11,13,16)(8,14,12,15)(17,20)(18,25)(19,26)(21,23)(22,29)(24,28)(27,30)(31,32)(33,34)(35,37)(36,44)(38,40)(39,46)(41,43)(42,47)(45,48)(1,2)(3,9)(4,8)(5,6)(7,10)(11,15)(12,13)(14,16)(17,19)(18,23)(20,30)(21,28)(22,27)(24,32)(25,31)(26,29)(33,36,38,46)(34,39,40,44)(35,42,43,48)(37,45,41,47)(1,4,5,13)(2,8,6,12)(3,11,10,16)(7,14,9,15)(17,21,22,31)(18,26,24,30)(19,28,27,25)(20,23,29,32)(33,37)(34,35)(36,45)(38,41)(39,42)(40,43)(44,48)(46,47)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.