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