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