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