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