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)(19,24,21,22)(20,25,29,32)(27,31,30,28)(34,38)(36,44)(39,41)(42,48)(1,2,6,3)(4,7,11,9)(5,8,13,10)(12,14,16,15)(17,19,23,21)(18,24,26,22)(20,27,29,30)(25,31,32,28)(33,34)(35,41)(36,40)(37,38)(39,43)(42,47)(44,45)(46,48)(4,11)(5,13)(7,9)(8,10)(19,21)(22,24)(27,30)(28,31)(33,34,37,38)(35,39,43,41)(36,40,44,45)(42,46,48,47)(1,3,6,2)(4,7,11,9)(5,10,13,8)(12,14,16,15)(17,20,23,29)(18,25,26,32)(19,27,21,30)(22,28,24,31)(33,34)(35,39)(36,40)(37,38)(41,43)(42,46)(44,45)(47,48)(1,4)(2,7)(3,9)(5,12)(6,11)(8,14)(10,15)(13,16)(17,21,23,19)(18,22,26,24)(20,27,29,30)(25,31,32,28)(33,35,37,43)(34,39,38,41)(36,42,44,48)(40,46,45,47)(1,5,6,13)(2,8,3,10)(4,12,11,16)(7,14,9,15)(17,22)(18,19)(20,28)(21,26)(23,24)(25,27)(29,31)(30,32)(33,36)(34,40)(35,42)(37,44)(38,45)(39,46)(41,47)(43,48)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.