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