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