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