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