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