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