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