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