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