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