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