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