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