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