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