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)(17,18,22,24)(19,25,26,20)(21,23,29,30)(27,31,32,28)(33,34)(35,39)(36,40)(37,45)(38,42)(41,46)(43,48)(44,47)(1,3,6,9)(2,7,8,4)(5,11,14,16)(10,15,13,12)(17,18)(19,20)(21,23)(22,24)(25,26)(27,28)(29,30)(31,32)(33,35,38,36)(34,39,42,40)(37,43,46,44)(41,47,45,48)(2,8)(4,7)(5,14)(11,16)(19,26)(20,25)(21,29)(23,30)(33,34,38,42)(35,40,36,39)(37,45,46,41)(43,47,44,48)(1,4,6,7)(2,9,8,3)(5,12,14,15)(10,16,13,11)(17,19,22,26)(18,20,24,25)(21,27,29,32)(23,28,30,31)(33,36,38,35)(34,40,42,39)(37,44,46,43)(41,48,45,47)(1,2)(3,4)(5,10)(6,8)(7,9)(11,12)(13,14)(15,16)(17,20)(18,19)(21,28)(22,25)(23,27)(24,26)(29,31)(30,32)(33,34)(35,40)(36,39)(37,41)(38,42)(43,48)(44,47)(45,46) involution — undirected(1,5)(2,10)(3,11)(4,12)(6,14)(7,15)(8,13)(9,16)(17,21,22,29)(18,23,24,30)(19,27,26,32)(20,28,25,31)(33,37,38,46)(34,41,42,45)(35,43,36,44)(39,47,40,48)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.