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