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