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