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