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