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