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