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