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