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)(17,18,23,25)(19,20,27,21)(22,30,31,24)(26,29,32,28)(34,39)(35,36)(42,46)(43,44)(2,7)(3,10)(9,12)(11,16)(17,19)(18,20)(21,25)(22,26)(23,27)(24,28)(29,30)(31,32)(33,34)(35,40)(36,41)(37,42)(38,39)(43,47)(44,48)(45,46) involution — undirected(1,3)(2,8)(4,11)(5,7)(6,10)(9,15)(12,13)(14,16)(17,20,23,21)(18,19,25,27)(22,28,31,29)(24,26,30,32)(33,35,38,36)(34,40,39,41)(37,44,45,43)(42,48,46,47)(1,3)(2,8)(4,11)(5,7)(6,10)(9,15)(12,13)(14,16)(17,21,23,20)(18,19,25,27)(22,29,31,28)(24,26,30,32)(33,34)(35,40)(36,41)(37,42)(38,39)(43,47)(44,48)(45,46)(1,4,6,14)(2,9,7,12)(3,11,10,16)(5,13,8,15)(17,22,23,31)(18,24,25,30)(19,26,27,32)(20,28,21,29)(33,36,38,35)(34,41,39,40)(37,44,45,43)(42,48,46,47)(1,5,6,8)(2,3,7,10)(4,13,14,15)(9,11,12,16)(17,19)(18,20)(21,25)(22,26)(23,27)(24,28)(29,30)(31,32)(33,37)(34,42)(35,43)(36,44)(38,45)(39,46)(40,47)(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.