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