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