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