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