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