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