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