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