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