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