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