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