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