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