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