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