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