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