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