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