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