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