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