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