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