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