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