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