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