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