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