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