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